The low mathematics learning outcomes on the topic of quadrilaterals among fourth grade students at UPT SD Negeri Kutorejo 3 Tuban were caused by teacher centered learning practices and the limited use of interactive learning media. This situation led students to experience difficulties in understanding quadrilateral concepts and reduced their active participation during the learning process. This study aimed to improve students’ mathematics learning outcomes on the topic of quadrilaterals through the implementation of drag-and-drop media for fourth-grade students at UPT SD Negeri Kutorejo 3. The study employed Classroom Action Research (CAR), conducted in two cycles consisting of the stages of planning, action implementation, observation, and reflection. The research subjects were 26 students, consisting of 11 boys and 15 girls. Data were collected through tests, observations, and interviews. Both quantitative and qualitative approaches were used for data analysis. The findings demonstrated that the implementation of drag and drop media successfully improved students’ learning outcomes in the quadrilateral topic. The percentage of learning mastery increased from 34.6% in the pre-cycle to 69.2% in Cycle I and further increased to 88.5% in Cycle II. This improvement occurred because the use of drag-and-drop media enhanced students’ attention, participation, and engagement during the learning process, enabling them to better understand the material and concepts of quadrilaterals. Therefore, the implementation of drag and drop media was effective in improving mathematics learning outcomes on the topic of quadrilaterals among fourth-grade students at UPT SD Negeri Kutorejo 3 Tuban.